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Questions and Answers
What is the ideal mechanical advantage (IMA) of the jackscrew with a lever arm of 40 cm and a pitch of 5 mm?
What is the ideal mechanical advantage (IMA) of the jackscrew with a lever arm of 40 cm and a pitch of 5 mm?
- 500 (correct)
- 250
- 300
- 150
If a jackscrew has a pitch of 3 mm and is 600 mm long, what is the actual mechanical advantage (AMA) when the efficiency is 30%?
If a jackscrew has a pitch of 3 mm and is 600 mm long, what is the actual mechanical advantage (AMA) when the efficiency is 30%?
- 500
- 250
- 300
- 150 (correct)
For a jackscrew with a pitch of 3 mm and 600 mm long, if a force of 60 N must be applied when lifting a load of 25 kN, what is the ideal mechanical advantage (IMA)?
For a jackscrew with a pitch of 3 mm and 600 mm long, if a force of 60 N must be applied when lifting a load of 25 kN, what is the ideal mechanical advantage (IMA)?
- 0.33
- 416.67
- 1257 (correct)
- 2.4
